[BUG] Attachment size 0 Byte/lost when writing shared database via webdav

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• I have read the FAQ section, searched the open issues, and still think this is a new bug.

Describe the bug you encountered:

first of all happy eastern. :-) I am using Keepass 2.58 with a database stored on a Synology NAS. Access via Webdav using a vpn connection. Keyfile stored locally on each device. This combination is used for many years using Chromebook (Keepass2Android), Android (Keepass2Android), Iphone (Keepassium) an Windows PC (Keepass).
On februrary 8th 2025 (last Backup version with correct attachments), I started using Keepass2Android on a Fairphone 5 device, after that all key attachments are reset to size 0 bytes. Even if I replace the 0 bytes attachent on an other device and resync, I cannot open/display the content on the android device (content empty).

Describe what you expected to happen:

No response

What version of Keepass2Android are you using?

1.11-r0

Which version of Android are you on?

14

Start by reproducing the issue in Keepass2Android 1.11-r0 on Android 14 with a KeePass database stored through WebDAV, focusing on attachment synchronization. Compare attachment sizes and readability before and after syncing with another client. Done means attachments retain their contents and can be opened on the Android device after replacement and resynchronization.